SwathIQ / Hail map / Alabama / Jefferson County

Jefferson County, Alabama Hail Map & History

The most recent reported hail day was 2026-02-26, 155 days ago. Jefferson County is hit in most years, and usually several times over. The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2017-04-05 near Irondale.

57
hail days since 2010
4
days with 2″+ hail
1
hail days this year
3.00″
largest stone on record

Colored swath = NOAA MRMS radar-estimated hail size; dots = NOAA SPC reports in Alabama. Radar-indicated, not a guarantee of damage.

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The last hail here fell on 2026-02-26, around Grayson Valley. A free SwathIQ account -- hand-reviewed, invite within 24-48h -- pulls Jefferson County addresses inside a hail swath above your size threshold into a door-knock list you can export, scoped to your approved markets.

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How often it hails in Jefferson County

NOAA's Storm Prediction Center has logged 57 separate hail days here since 2010 -- 3.4 a year over 17 years of record. Those days carry 117 separate reports between them, two or three on a typical one. Exactly one year since 2010 passed with no reported hail day at all. The busiest single year was 2012, with 10 hail days. The last five years track the long-run rate, with 13 days since 2022.

Most hail here stays under 2 inches: only 4 of the 57 days on record passed it, 7%, the last on 2022-05-21. Those big days do not follow the county's usual calendar: most of them fall in March, not May. Golf-ball size is rarer still: 1.75 inches or more on 14 of the 57 days.

Across the whole of Alabama, see the Alabama hail map and history.

Hardest-hit places in Jefferson County

Reports cluster nearest Trussville -- 7 of the county's 57 hail days -- then Birmingham (6), Morris (5), Hoover (5) and Bessemer (4). Beyond those, NOAA names Kimberly, Gardendale, Oak Grove, Warrior, Pinson, Irondale, Little Shoal, Bluff Park and Cahaba Heights on more than one hail day apiece.

PlaceHail days since 2010Largest stone
Birmingham41.75″
Trussville41.75″
Hoover31.25″
1 Sse Gardendale21.75″
Bessemer21.75″

When it hails in Jefferson County

The season runs March through July: 47 of the 57 hail days on record fall in those 5 months (82%). May is the single busiest month, with 12 of them (21%). That peak sits inside the window rather than at either end. September and November are the only months that have never produced a reported hail day.

MonthHail days
January1
February4
March11
April8
May12
June11
July5
August1
October3
December1

Recent Jefferson County hail days

That day put 4 reports on the map, the biggest 1.75 inches near Grayson Valley. 1 hail day has already been reported this year.

DateMax hailReports
2026-02-261.75″4
2025-06-271.00″1
2025-05-171.25″2
2025-04-231.00″1
2024-08-181.00″1
2024-05-181.00″1
2024-05-091.75″4
2024-02-121.00″1

How to read the Jefferson County map

The colored swath is NOAA's MRMS radar estimate of the largest hail per ~1 km cell; the dots are SPC ground reports. Yellow is about an inch, red 1.5 to 2″, purple 2″ and up (hail size vs roof damage). On this county's worst day the reports reached 3 inches, which is the purple band. Look up a street address with the hail history by address tool.

Nearby counties

The nearest counties with a page of their own: Shelby County (27 hail days), St. Clair County (19) and Walker County (30). Jefferson County takes more hail than any of them.

Shelby County · St. Clair County · Walker County

Back to the Alabama hail map or the U.S. hail map.

FAQ

How often does it hail in Jefferson County, Alabama?
NOAA's Storm Prediction Center has logged 57 separate hail days here since 2010 -- 3.4 a year over 17 years of record.
When is hail season in Jefferson County?
The season runs March through July: 47 of the 57 hail days on record fall in those 5 months (82%).
How big does hail get in Jefferson County?
The largest stone on record here is 3 inches, a teacup and 3 times the National Weather Service's 1 inch severe criterion, reported on 2017-04-05 near Irondale.
When was the last hail in Jefferson County?
The most recent reported hail day was 2026-02-26, 155 days ago.
Is the Jefferson County hail map free?
Yes, no login. A free account adds door-knock address lists and CRM exports.

Data & method: NOAA/NWS Storm Prediction Center reports + NOAA MRMS MESH radar, Jefferson County, Alabama only. Radar-indicated and observation-based -- informational only, not a guarantee of damage or a valid claim.